Nancy, Stella, Ruben, and Enda Are a Transnational Team and Each

Nancy, Stella, Ruben, and Enda are a transnational team and each of them is from a different province. They are tasked with developing strategies for increasing sales to the United States. One day, Nancy receives an email from Enda that says:

Nancy, You forgot to account for the time difference between Calgary and Saskatoon the last time we conference-called. Stella nearly missed the meeting, so don't forget when you schedule the call for next Monday.

Enda

Nancy feels likes she's been chastised when she reads Enda's email and immediately sends a private message to Ruben: "I can't believe how rude Enda is! Who's he to tell me how to do my job?!"

-Which of the following statements is TRUE?

A) Nancy should respond to Enda with a message of her own, clearly expressing her annoyance.
B) Nancy should respond to Enda with a neutral message acknowledging his request, and she should keep her thoughts on his tone to herself.
C) Nancy should write a polite message back to Enda and ask him directly if his tone was meant to convey irritation, which is how she interpreted it.
D) Nancy should send the message to her team's manager and ask the manager to mediate the conflict.
E) Nancy was correct to contact Ruben since by investigating her teammates' experiences with Enda, she can better determine his intentions.